F-15s never did any of that so it sounds like some other issue causing it. However, Eagles have had their new update so if you purchased from a third-party store you should be able to update soon ( v1.0.8 ). Marketplace will follow in a week or two once they have processed it. New flight dynamics by @CodenameJack447 are far better now along with many other improvements.
I got mine through the “Store”. I’m not even sure how I got there. Oh, I guess because MSFS 2020 was where I got the game. But, trying to do a login fails.
Nice update for the F-15! The problem with the “jerky” pull up on the stick has disappeared, as well as the invisible “D” model being visible again. Other things too, I bet.
Thanks for your time and efforts to keep the F-15 a great plane for us jet jockeys!